Mathematics

23 June, 16:19

Rap/hip-hop music accounted for 11.7% of the total sales of recorded music in 1998, and 13.9% of the total sales of recorded music in 2006. Find the average rate of change of the percentage of sales of rap/hip-hop music from 1998 to 2006.

Round to the nearest hundredth of a percent.

The average rate of change is what percent?

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